Stoves for cooking and heating buildings



AULD & COX.

Cooking Stove. v No. 211. Patented May 30, 1837.

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WAS. AULD AND JAMES COX, OF PHILADELPHIA, PENNSYLVANIA.

STOVES FOR COOKING AND HEATING BUILDINGS.

Specification of Letters Patent No. 211, dated May 30, 1887.

To all whom it may concern Be it known that we, WASHINGTON AULD and JAMES Cox, of the city of Philadelphia, State of Pennsylvania, have inventeda new and Improved Cooking-Stove, which stove may be used for the purpose of heating apartments other than that in which the stove is placed by conveying heated air therefrom through tubes constructed for that purpose; and we do hereby declare that the following is a full and exact description thereof.

In the accompanying drawings Figure l, is a perspective. view of the stove; Fig. 2, a longitudinal, vertical section through its center, and Fig. 3, a similar section from front to back; Fig. 4:, is the bottom plate; Fig. 5, a plate level with the top of the furnace and the lower ovens, and Fig. 6, the boilerplate, which receives the cooking utensils, and stands a few inches above the last named plate, Wherever the same parts are represented 1n these figures, they are desig.

nated in each by the same letters of reference. The dark parts in Figs. 4, '5, and 6,

are openings through the plates. These sec-f tional drawings are upon a scale of an eighth of an inch to a foot, as taken from a stove constructed by 'us, but the size and proportions may be varied to any desired eX- tent without altering the principle. of our invention. 7

This stove is divided into alower, and an upper compartment, the former being made, principally, of cast iron, while the upper portion is usually made of sheet metal.

A, A, is the front cast-iron plate of the lower compartment, there being a corresponding plate at the back.'.. The ends of this part are curved, as shown in the draw ing, and are closed by the curved oven doors B, B, hinged to the bottom plate of the stove. C, is an ash pit and drawer, passing under the furnace. The doors, B, B, inclose ovens which have ledges and sliding shelves in them, in the usual way. We sometimes use these ovens for roasting, in the manner of the tin kitchens. For this purpose, we

make openings in the front and back-plates, through which to pass a spit; these openings when not in use are closed by sliding stoppers D, D, The horizontal form of this oven is shown at M, M, in the plan of the bottom late, Fig. 4; which plate sustains the grate E, E, and the furnace cylinder F, F, by which it is surmounted. f

G, G, G, G, are partition plates, extending from the bottom to the top plate of the oven; and from the front and back plates, to

the cast-iron furnace cylinder, two thirds of the outer surface of which cylinder is within the ovens. There are openings through this bottom plate, which are usually to be closed by sliding shutters, retained be- 7 tween the ledges H, H.

The compartments I, I, which may be denominated heated air chambers, andembracing the space between the ovens, are

inclosed by the revolving valve J, in the front plate A, and by a similar valve in the back plate.

Theplate represented in Fig. 5, which Y forms the top plate of the ovens, has' five perforations throughit; that in the center,

F, F, being the openinginto the furnace. Those marked-K,.K, are openings into the air-chambers I, I; and the long ones, L, L, p at the ends, open into the ovens-M,

are the narrow plates which. form the sides I of the chamber Q, Q, which receives the bot- .1 'I

tom of the boilers, and upon which narrow platesrests the boiler plate R, R, F ig. .6.s S,

is aplate of the same width with P, P, the

space between it and P forming a flue into which the heated air passesfrom the fur,

nace, through the openings T, T; left byf making the plate S, shorter than P. i The smoke pipe U, Fig. 3.';opens into this chain her, through the middle of the plate P, the

course of the draft from the furnace being V alonglthe chamber, Q, through the openings T, T, into the flue between the plates S and P, and thence through the escapelpipe U.

V, V, V, are the openings in the boiler plate,

to receive the boilers.

' The grate E, E, which is received in' the i opening inthe bottom plate, is connected with it by a hingejoint at its back .part,

while its front rests upon the inner endof a rod, or bolt operating as a shaker,by;

vibrating the outer end W, Fig. .1; said' I inner end being flattened, or otherwise so formed as to effect this object; this bolt may be withdrawn, so as to allow the grate to fall, andthe contentsof the furnace ho be discharged into the ash pit. We prefer to and showing the boilers within, resting upon the boilerplate. Its top, 0, is hinged to the back, and this compartment may, therefore, be inclosed, or left open, as may be preferred. The top, and indeed the whole of the case of the upper compartment may be made double, and will be much improved by being so constructed, the two doors are furnished with revolving valves. In the back part of this compartment there is a large tube (Z, d, Fig. 3, whichleads into a flue, or chimney; this tube may be closed by means of a sliding shutter, represented by the dotted line e Fig. 3. This shutter and opening are distinctly shown, by the dotted lines in Fig. 2. The tube cl, d, is usually about eight inches in diameter; it serves efi'ectually to carry off the vapor from the cooking utensils., The best arrangement for the smoke pipe U, is to lead it into,,and through, this tube; in the manner shown in Fig. 3, as the draft will, thereby, be 'much promoted.-

Where a smaller stove is desired, which shall operate upon the same'principle with that herein described, it may be made by diminishing the size of the respective parts, but we prefer, generally, to accomplish this object in another way; that is to say, we leave out one of the ovens in the lower compartment, andplace the furnace near to one end of the bottom plate. The, single oven will, in this case,.be equally capacious with those described, and the upper com-.

partment will contain two large boilers. vOne half, or more, of the furnace cylinder may stand within theoven; the heated air chamber, and ash-pit, should occupy the end of the stove opposite to the curved door of the oven; in other respects there will vbe but little change ment.

Our stove as herein described is adapted, especially, to the combustion of anthracite, and wherever this fuel can be obtained, we

arefully convinced that it will be found most economical, and in all points to be preferred; but our stove is also susceptible of being so constructedas to adapt it to the burning of wood. The front heated air phamber will, in this case, be dispensed with, and such openings be made into the furnace part as are used in other stoves "where wood is'burned; the cast-iron cylin--- in the general arrangeder will give place to a proper receptacle for wood, and the ash-pit will be adapted thereto. In other respects, the various parts may be arranged as herein-before described.

Having fully described the manner in "which we construct our stove, and, in part,

pointed out the mode of using it, we now proceed to show its operation, more particularly and distinctly. By closing all the doors, shutters and valves, we obtain three separate ovens, in which all the operations of cooking may be carried on by the heat from one fire, and with a very moderate consumption of fuel. By removing the boilers 'in the upper compartment, and adapting covers to the openings in the .boiler plate, this compartment will be converted into a large oven, in which bread, and other articles, may be baked. The heat in these three ovens may be equalized, or regulated, by means of the end valves, or shutters. Should the heat be too great in the lower ovens, the shutters on the bottom plate may be opened to any extent, and cool air admitted; this may also be carried into the upper compartment, or oven, by means of the end valves, or shutters. The revolving valves in the upper doors, also, furnish the means of admitting cool air into the upper compartment, to any extent. It will be manifest, likewise, that the shutter of the large pipe in the back of the upper compartment, furnishes the means, in combination with the other valves and shutters, of regulating and governing the heat throughout the whole apparatus.

When the stove is used as a summer cooking-stove, this command of the heat is a point of much importance, as it may be so managed that but little of it will escape into the room; thus by closing the valves 'in the upper doors, as well as the doors generally, and leaving the shutter open in the back of the upper compartment, nearly the whole of the heat, and all the fumes from cooking, will escape up the chimney. When, on the contrary, it is desirable to throw the heat into the room, the air-pipe at the back is to be closed, the valves in the upper doors opened, and likewise those leading into the air-chambers. Should the lower ovens, or either ofthem', not be in use, they also will supply a. large portion of heated air through the end valves, or shutters. When not wanted for cooking, this stove, it is confidently believed, will operate as an air heater with a degree of efliciency not surpassed by any other, consumingthe samequantity of fuel. The cool air will, inthis case, be adthe upper compartment, into one, or more rooms, as may be deslred.

What We claim as our invention, and

Wish to secure by Letters Patent, is-

1. The manner in Which We have arranged and combined the respective parts of this stove, so as to command the passing of cool, or of heated, air into, and through, therespective compartments, in the manner, and

for the purposes, herein set forth, regulat ing and governing the same by means of the respective shutters, Valves and dampers leading to and from the ovens, and the heated air chambers.

2. The location and use of the large tube for carrying off the fumes from the upper warm.

WASHINGTON AULD. J. COX.

Witnesses:

JAMES PDJGEON, EMMOR CRAIG, JOHN MOLEAN. 

